Shortlist AI email marketing tools by the job: MailerLite for regular newsletters, Brevo for comparing sending volumes, Mailchimp for AI content within an established email workflow, and ActiveCampaign for more involved follow-up sequences. Test two against your real campaign before paying for a larger plan or moving your customer list.
Those are starting points for a shortlist, not a league table of results. An excellent draft is only one part of email marketing. Your choice also has to handle the right recipients, unsubscribe requests, working links, reliable sending and a handover to whoever runs next month's campaign.
Choose the job before choosing the AI feature
Write down the last campaign you struggled to finish. Was the problem finding words, assembling the email, choosing a group of customers, or following up after an enquiry? These are different buying decisions. A better writing assistant will not repair a list where you cannot distinguish guests from people who only asked about a room.
For an illustrative guest house, the job might be: send one monthly update to 650 people who have agreed to receive it, plus a welcome message for new subscribers. For an estate agency, it might be: send relevant property updates to people whose preferences are current, with someone checking that each listing is still available.
Both businesses need email software. They may need very different automation. Automation means a rule starts an action, such as sending a welcome message after someone subscribes. AI can help draft the message or suggest a sequence, but the rule still needs a clear trigger and a way to stop.
For a single monthly newsletter, test writing and editing first. For a sequence, test entry, exclusion and exit rules before judging the prose. If you mainly need help producing the words, use the 30-minute newsletter workflow to establish a repeatable process before switching software.
| Your main difficulty | Start your shortlist with | What must pass your test |
|---|---|---|
| Finishing a regular newsletter | MailerLite | A useful draft, readable mobile layout and manageable review time |
| Finding a suitable sending allowance | Brevo | The quote covers both stored contacts and your actual sends |
| Building campaigns in an existing Mailchimp account | Mailchimp | The AI feature is available in your account and uses your source correctly |
| Running several follow-up paths | ActiveCampaign | Contacts enter the right sequence and leave when they should |
| Writing is slow but sending works well | Your current sender plus a separate drafting step | The time saved exceeds copying and checking time |
MailerLite: test it for a repeatable newsletter routine
MailerLite's AI writing assistant is available on its Comfort and Power plans. It uses credits for prompts and responses, with a larger allowance on Power. Its documentation says extra AI credits cannot be bought separately. Check the allowance in the account you will actually use, especially if several people will draft campaigns.
Older comparisons refer to Growing Business and Advanced. MailerLite now calls these plans Comfort and Power, with existing accounts moving at renewal or a manual plan change. Its pricing page lists starting prices of $12 a month for Comfort and $25 for Power in USD. Treat these as starting figures: confirm your subscriber tier, billing period and renewal total in checkout.
This is my shortlist choice when an owner wants a newsletter they can finish without designing a new process every time. That is an editorial recommendation, not a claim that MailerLite will produce better results for every list. Spend the trial on your actual newsletter, including the awkward bits, such as a long accommodation description and two different booking links.
Illustrative test: a guest house supplies three facts: breakfast starts at 07:30, two rooms accept dogs, and direct booking enquiries receive a human reply. The AI draft says, “Bring your dog to any of our welcoming rooms and enjoy breakfast whenever you choose.” It reads smoothly, but two promises are wrong.
Replace that with: “Travelling with a dog? Ask about our two dog-friendly rooms before booking. Breakfast starts at 07:30.” The important score is how quickly you can reach that accurate version. Count the time spent checking room restrictions, editing the draft and testing the link, not just the seconds spent generating it.
Do not move your list because one sample email looks attractive. First check whether the person covering reception can duplicate the approved campaign, replace the dates and send a test without needing you. A tool that only the owner understands creates a new bottleneck.
Brevo: compare the whole sending tier
Brevo's Aura assistant can generate and refine marketing content, including subject lines and email content. Its documentation describes full email design generation as a beta available to some users. Do not buy on the assumption that a demonstration of that beta will be available in your account.
Brevo's plan guidance lists Starter from $9 a month and Standard from $18 a month in USD. The selected email volume also determines contact storage limits. For example, its Starter table pairs 5,000 monthly sends with up to 500 stored contacts, and 10,000 sends with up to 1,500 contacts. Check the live quote rather than assuming that any paid tier holds your whole list. On the first three tiers, Brevo moves you up automatically when you pass the contact limit, and the price rises with it. The Free plan works differently again: 300 sends a day, storage for up to 100,000 contacts, and Aura included.
That makes Brevo worth comparing when sending volume is a central question. It also makes an old “unlimited contacts on every paid plan” recommendation unsafe. Write both numbers on your buying sheet: contacts stored and emails sent. A business sending infrequently may hit the first limit before the second.
Consider an illustrative tour operator with 900 permissioned subscribers. Two newsletters use 1,800 sends. A three-message sequence for 40 new subscribers uses another 120. The working estimate is 1,920 sends, before test messages and any other activity counted by the chosen plan.
The lowest advertised sending allowance looks ample, yet the contact ceiling makes that tier unsuitable. On the Starter table, 1,920 sends would fit inside 5,000, but 900 contacts exceed that tier's 500-contact limit, so the quote lands on the 10,000-send tier (up to 1,500 contacts). The Free plan would store the list, but at 300 sends a day one newsletter to 900 people takes three days to go out. Enter 900 contacts into the quote, allow for expected growth and check any extras you require. Keep booking confirmations separate in your requirements: they are operational messages, and their delivery arrangements should not be guessed from a marketing plan headline.
In the trial, give Aura a factual brief and inspect whether its suggested urgency is justified. “Last chance to book” is wrong if departure sales remain open for another month. Change it to the real decision: “See available departures for the next four weeks.” Accurate urgency comes from the business, not from the writing tool.
Mailchimp: inspect the particular AI feature you want
Mailchimp documents more than one AI content feature. Its email content creation guidance describes generating sections from a link or supplied text in the New Email Builder on paid plans. Separate Write with AI guidance describes a beta on Standard or higher, with account availability restrictions. A paid subscription alone does not establish access to every advertised AI tool.
Mailchimp prices Standard by contact tier, and the plan's monthly send limit is 12 times its contact limit, so the 500-contact tier allows 6,000 sends. The pricing page usually leads with a first-year promotion (50% off for 12 months in September 2026) and then shows a “Then, starts at” figure. Budget on that later figure for your contact count, not the headline. Mailchimp also says subscribed, non-subscribed and unsubscribed contacts all count towards the contact limit, while archived contacts don't. Review stored records carefully while preserving the information needed to honour unsubscribe requests.
I would include it first when a business already has a working Mailchimp process and the team knows the editor. The question is whether the relevant AI feature removes enough work to justify the account's actual price. Moving an established list, templates and reporting history has a cost even if a rival's headline subscription looks cheaper.
Illustrative estate agency test: provide an approved property description containing “two bedrooms, one allocated parking space, viewings by appointment”. Ask for a short newsletter section. If the output becomes “spacious family home with ample parking”, reject the unsupported expansion. Ask for those three facts to remain explicit.
Also inspect the destination. An accurate description linked to a withdrawn listing still wastes the reader's time. Have the property administrator approve the availability and the page, then let the marketer approve the wording. These are separate checks, even when one person does both.
Before paying for an upgrade, ask for a demonstration inside your account of the exact feature you intend to use. Record the feature name, eligible plan and any restrictions. “Includes AI” is too broad to be a purchasing requirement.
ActiveCampaign: useful when the sequence is the hard part
ActiveCampaign's plan overview lists AI content generation from Plus upwards and predictive sending on its higher Pro tier (called Professional in parts of its help centre) and Enterprise. Predictive sending uses contacts' habitual opening times to choose when to send. Its help documentation says that feature is unavailable in trial accounts and for one-to-one emails, so a standard trial cannot prove every part of the proposed setup.
Shortlist it when you have several meaningful follow-up paths and someone to maintain them. For example, a letting agency might need different messages for owners who requested management information and owners who booked an appraisal. The buying case is the whole sequence, including stopping conditions, rather than a nicer subject line.
Use this illustrative acceptance test: one test record asks for an information pack, a second books an appraisal, and a third unsubscribes. The first should receive the approved information. The second should leave the information-only follow-up path. The third should receive no further marketing. Test those outcomes before importing a live list.
Ask the supplier to demonstrate that sequence using the plan you are considering. Confirm which booking or customer-record connection is required, what it costs, and what happens when that connection fails. Do not assume that the name of a familiar booking system on an integrations page proves your exact workflow.
For a small list with one monthly send, I would usually test a simpler routine first. Extra branches have to be checked after changes to prices, services and availability. If nobody has time to maintain them, the sequence can become more expensive than the manual work it replaces.
A campsite compares three routes using the same campaign
The following is an illustrative buying exercise, not a client result or a vendor benchmark. A campsite has 1,200 permissioned subscribers. It sends two newsletters each month and adds 50 subscribers to a three-message welcome sequence. It needs 2,400 newsletter sends plus 150 welcome sends: 2,550 sends before tests and other counted activity.
The owner currently spends 100 minutes on each newsletter and 40 minutes a month maintaining the welcome messages. That is 240 minutes, or four hours. They value their planning time at an assumed $25 an hour, giving an internal time cost of $100 a month. This is a budgeting assumption, not money that will automatically return to the bank.
The owner sets three gates before scoring any tool: it must preserve unsubscribe exclusions, cover the required contacts and sends, and produce a campaign a colleague can review. A tool that fails a gate is not rescued by excellent writing.
| Illustrative trial route | Monthly campaign work | Time released | Value at assumed $25/hour |
|---|---|---|---|
| Keep the sender; add a separate drafting step | 180 minutes | 60 minutes | $25 |
| Use AI inside the existing sender | 140 minutes | 100 minutes | About $41.67 |
| Move to a new platform after testing | 130 minutes | 110 minutes | About $45.83 |
These are invented trial results to show the calculation. Substitute measured times from your own work. Notice that the new platform saves only another ten minutes over improving the existing one. That is about $4.17 of owner time a month at the assumed rate.
Now suppose migration would take six hours, including list checks, rebuilding the welcome sequence and testing forms. At $25 an hour, that is $150 of internal setup time. Spread over six months, it adds $25 a month to the comparison, before any supplier fee or subscription difference.
The new platform could still win if it fixes a serious sending or workflow problem. It does not win this example on drafting time alone. The owner keeps the existing sender for a four-campaign pilot and asks for live quotes before considering a move. The small-list email cost tutorial helps turn those quotes into a like-for-like budget.
Run a 90-minute trial with one difficult email
Choose a campaign with a real restriction, rather than an easy welcome message. Give both shortlisted tools the same facts, audience and desired action. Use made-up recipients for testing. There is no need to upload customer names or booking histories just to find out whether an assistant can write a clear paragraph.
- Spend 15 minutes preparing the brief. Record the offer, dates, exclusions, destination page and words you do not want used.
- Spend 20 minutes drafting in each tool. Keep the first usable output and count corrections. Do not allow unlimited retries for one candidate.
- Spend 20 minutes checking the messages. Read them on a phone, open each link and inspect the sender and reply details.
- Spend 15 minutes making the choice. Compare total handling time, factual errors, review effort and the live quote.
Here is a filled-in brief for an illustrative property maintenance firm. The point is to test whether the tool preserves an important exclusion while making the message easier to read.
Draft a customer email of 100-130 words.
Audience: existing customers who agreed to receive maintenance updates.
Service: planned gutter clearing for single-storey buildings.
Booking period: 5-16 October.
Price: assessed after photos; no fixed price is approved.
Exclusions: roof repairs and emergency call-outs.
Action: reply to request a booking assessment.
Tone: helpful and plain, without pressure.
Do not invent availability, discounts or safety guarantees.
Return a subject line, preview text and body.An illustrative weak output is: “Beat the weather with our guaranteed gutter repair package. Book now for the best price.” It changes clearing into repair, invents a guarantee and implies an approved price comparison.
A corrected opening is: “We are taking requests for planned gutter clearing on single-storey buildings between 5 and 16 October. Send photos when you request an assessment so we can confirm the work and quote.” The reviewer should also check whether customers have a suitable way to send photographs before approving that instruction.
Score each trial from one to five for factual accuracy, editing effort, layout checks and handover. Write a sentence explaining each score. “Accuracy: two, because it invented a price twice” is more useful than an overall mark that hides the reason.
Make migration and cancellation part of the buying test
A trial should include leaving the platform, even if you hope to stay. Ask how to export the records you need, which details are included and whether you can preserve the evidence behind customer preferences. Confirm the answer in the product's current documentation or with support. An attractive editor does not answer those operational questions.
Use an illustrative letting agency list to test the handover. It has 750 contact records: 660 eligible for its planned campaign, 38 that have unsubscribed and 52 whose permission needs checking. The sendable group is 660, not 750. Those numbers should remain consistent through a test export, import and campaign preview.
Do not delete exclusion information just to make the paid contact count smaller. Decide how it will be retained and applied in the new process. Equally, do not upload the 52 uncertain records to a marketing sequence while someone investigates them. A tidy spreadsheet is not evidence of permission.
Before a live move, create test records for the situations you need to preserve: eligible subscriber, unsubscribed contact, missing first name, two service interests and someone who has already booked. Write the expected treatment of each. Then check the proposed platform against that list using its actual controls.
For example, the two-interest test contact may belong to both camping and touring-vehicle groups. If the campaign targets both groups, the requirement should say whether that person receives one message or two. Do not assume the platform will interpret your intention. Ask for a demonstration and inspect the final recipient preview.
Check the financial exit too. Record the billing commitment, renewal date, cancellation process and any outstanding migration work. Ask whether a temporary promotional price changes later. Keep a copy of the quote with the selected list size and plan so you can recognise a later change in scope.
Finally, test cover for the usual sender. In an illustrative guest house, the owner spends 15 minutes showing the deputy an approved campaign. The deputy must update a breakfast notice, send a test and identify the correct audience without touching the live send. If they cannot, improve the instructions before adding more automation.
This handover can reveal costs that a feature checklist misses. A tool needing 20 minutes of owner rescue on every campaign may release less time than a slightly slower editor the deputy can use independently. Include those rescue minutes in the trial record.
Keep the old sending process available until the new one has passed its agreed checks, while preventing duplicate live campaigns. Set a clear handover date and one person responsible for authorising the first send. Migration should end with an approved working routine, not merely a successful contact import.
Check the work around the draft before you commit
Ask whoever manages your domain to complete the sender-authentication steps required by the selected platform. These are the checks that help receiving systems recognise an authorised sender. Follow the vendor's current instructions; copying settings from another business is not a safe shortcut.
Prepare a small group of internal test addresses. Check the email on the devices your team actually uses. Confirm that unsubscribe and preference links work in a test you can safely complete. Check what happens when a name is missing, a property link is stale or the recipient is already in another sequence.
Keep a record of permission and exclusions when changing systems. Do not treat a new platform as permission to contact everyone in an old spreadsheet. If your right to send a particular message is unclear, ask a qualified data-protection adviser before importing that group.
For targeting, start with information people have supplied, such as interest in camping pitches or managed lettings. Avoid guessing personal circumstances from names or AI-written profiles. Use the small-list segmentation tutorial to make groups you can explain and maintain.
After four campaigns, review hours spent, genuine replies, qualified enquiries, bookings, unsubscribes and complaints. Keep the offer and audience as comparable as practical. If bookings rise during a busy period, record that context instead of assigning the whole change to AI.
Keep the tool when it makes the complete job easier at an acceptable cost and the messages remain accurate. Fix the process when drafting is faster but checking has become slower. Cancel an upgrade when its main benefit is a feature nobody uses. The right purchase is the one your team can run calmly next month.
Further reads
- How to Fact-Check AI Marketing Copy Before It Goes Live — Check offers and promises before a campaign reaches customers.
- How to Measure Whether AI Is Improving Your Marketing Results — Separate faster drafting from better commercial results.
- Free vs Paid AI Marketing Tools: What Is Worth Paying For — Decide which paid features your business actually needs.
- What to Prepare Before You Set Up AI Marketing — Gather the customer records and content needed for setup.
- How Spas Use AI to Personalise Offers From Treatment History — Six treatment-history patterns worth their own offer, the prompts to write them, where personal turns creepy, and a holdout test to prove it worked.
- How to Set Up AI Abandoned Cart Emails for a Small Online Store — Turn on the free built-in checkout reminder, add two follow-ups, and let AI write the copy while plain rules decide who is emailed and when.
- How to Build a Welcome Email Sequence With AI — Plan and test a three-email welcome sequence that delivers the signup promise and stops selling once someone has booked.
- How to Create Lead Magnets With AI: Checklists, Guides, Calculators — Turn the question customers ask most into a checklist, short guide or working calculator with AI, then deliver it through a sign-up form, with a bakery example.
- How to Build an Upsell and Cross-Sell Email Sequence With AI — Find what customers really buy next, plan a short triggered sequence, draft it with AI from a proper brief, and stop it the moment someone buys.
- What Can AI Do for Your Email Marketing? 10 Practical Uses — Ten practical AI uses for small business email, each with a worked example, the data it needs, and the mistake to avoid.
- Email Newsletter QA Checklist Before You Hit Send — A grouped pre-send checklist for newsletters, with why each check matters and how to verify it, plus a worked launch email with the errors it caught.
- AI Tools and AI Development: The Complete 2026 Guide — the AI hub, including every tutorial in the AI-for-business series.
Sources: MailerLite pricing, paid plans update FAQ and AI writing assistant documentation; Brevo pricing plan guidance and Aura content guidance; Mailchimp pricing tiers, pricing page, Create Email Content with AI and Write with AI; ActiveCampaign plan overview, AI content and predictive sending help articles. Checked 28 September 2026.